8-50 When You Cannot Obtain Appropriate Printout ResultsTroubleshooting8When You Cannot Obtain Appropriate Printout ResultsIf any problem occurs while you are using the printer, take the following measuresdepending on the symptoms.IMPORTANT• If the printer does not operate properly or an error message appears, see "Message List"(p. 8-33) and "Service Call Display" (p. 8-48).• When a paper jam occurs, see "Paper Jams," on p. 8-4.• If a symptom that is not indicated in this section occurs, if none of the indicated remediesdo not solve the problem, or if you cannot determine the problem, contact your localauthorized Canon dealer.Problems with the Power or Printer OperationThe printer cannot be turned ON.Cause 1 The power plug is unplugged from the AC power outlet.Remedy Plug the power plug into the AC power outlet.Cause 2 The printer is plugged to an extension cord or multiple power strip.Remedy Plug the power plug of the printer directly into the AC power outlet on the wall.Cause 3 The breakers have tripped.Remedy Reset the breakers on the switch board.Cause 4 There is a break in the power cord.Remedy If the printer is turned ON after replacing the power cord with the one that is ofthe same type and is used for other device, there is a break in the power cord.In this case, purchase a new power cord and replace it with the broken one.The printer does not operate.Cause 1 The printer is offline.Remedy Press the (Online) key to turn on the (Online) indicator. (See "Onlineand Offline," on p. 3-5)